Liquid-heating attachment



March 26,1929. A. J. HUGHES 1,701,122

LIQUID HEATING AT'IACXIMENZI Filed July 25, 192' 2 Sheets-Sheet 1 INVENT OR.

BY 3M;

04TTORIN'R Y.

March 26, 1929. A. J. HUGHES LIQUID HEATING ATTACHMENT Filed July 25. 1927 2 Sheets-Sheet INVEN TOR M Q WW BY o TTORNEE PM..." 0.26, 929. a

Lam-r a. HUGHES, or u. ran, mason.

mourn-name armcmrm. Application am m :5, 1m. Serial 16. zoom.

This invention relates to' an electric liquid hea device designed particular] for use in 1i uld containers of various kin among whic are house and motor vehicle radiators,

steamboilers, hot water heatin plants, stockwatering tanks and 'receptac es of various kinds in which water or other li uids are to be'heated or steam generated. e device includes one or more tubes of wire mesh inclosing a main electrode immersed n water or other liquid so that said liquid provides a conducting medium between the. electrode and tube and is heated by the current.

One object of the invention is to provide automatic means for controlling the flow of current to the heating medium. Other obects and features of m improved heater will be fully set forth in t, e following s ecification and claim, reference being a to the accompanying drawings, in wh1ch,

Fig. 1 is a perspective view of a steam radiator embodying my improvements.

Fig. 2 is a partly sectional side elevatlon of the radiator shown in Fig. 1 and revealing 26 my device more clearly in operative position.-

Fig. 3 is an elevation of my heating device as applied to an upright vessel containing water to be heated.

Fig. 4 is an enlarged section of the heating device as on line 44 in Fig. 2 and Fig. 5 is a -transverse sectional detail of the socket part of my device as on line 55 in Fig. 4.

Fig. 6 is a modification of Fig. 4. Fig. 7 is a front view of the thermostatic means and Fig 8 is a section on line 8-8 ini 9 is a schematic circuit diagram. Re errin to the drawing by reference numerals, t e heatin element comprises a main electrode 10 held concentrically within a tube 11 formed of wire screen or the like, the means for holding the electrode central comprising preferably an end disc 12 and any suitable number of inner discs 12, of nonconductive material and bored to retain member 10 passed through the discs 12, the front end of said member 10 simply being retained in a central ket at the inner side of disc .12 (see Figs and 6).

concentric about electrode 10 and suitably retained in this position also in the discs 12 and 12*.

13 is a collar arranged to hold the rear end In Fig. 611 is an auxiliary inner tube also of electrode 10 which projects into an aperture 14 formed between said collar and a flanged non-conductive bushing 15 fitted into the central part of a large flan ed cap 16 havmg forwardly extending male threads 16" and female thread 16". 17 is an intermediate sleeve threaded to engage threads 16' and the front bore of which concentricall retains the rear end of tube 11 between it an the outside of collar '13. 18 is a threaded metal collar fitted into the reduced rear art of sleeve 17, electric current being con noted from the tube 11 through said collar 18 to a contact 19 which in turn conveys current through a metal washer 20 in flanged bushing 15 having a partiall imbedded terminal 21 connected to sald was er. 20 and extendin outwardly thereof to and en ageable toget er with another terminal 23 in a plug 22. Said terminal 23 has a contact connection 24 conveying current to the electrode 10 (see Figs. 4 and 6) In Fig. 6 I have shown an auxiliary inner tube 11 as previously mentioned. In either the single or multiple tube types of my device all or any part of the tubular member is submerged, not including the head cap 16, as in Fig. 2, in the water 25 in the lower part of a radiator 26 or in any. vessel as 27 in Fig. 3.

In Fig. 2 is shown that cap 16 is threaded into the 1ntake aperture 26 of a steam or hotwater radiator so that the tube 11 extends into to the bottom part of the radiator and is submerged in a quantity of water therein. Then when the circuit is closed current will pass from the electrode throu h water into tube 11 or tubes 11 and 11 as t e case may be and thus heat the water and generate steam. As applied in Fig. 3 a volume of water in a receptacle may be heated very rapidly and if the water should all vaporize current will of course be shut ofi as there is then no water acting as a conductor, but it is further obvious that the device is in use as a water heater as long as there is water in the race tacle unless the current is otherwise shut o I provide automatic means for controlling 10 the current to the heating element, such means including if so desired a switch 29 in the circuit C of the element controlled by a thermostat 30, so that when the room or other compartment in which the radiator 26, for example, is heated to a certain degree, the thermostat will open the cut-out 33 and thus break circuit to the.heating element. As

soon as the'room cools enough to contract the thermostat,the cutout 33 will close again so that current will pass to the heating element. I may also bridge the thermostatic device by means of a by-pass conductor 31 in which is a lamp 32. In this case when the cut-out 33 is closed, current will pass to the heating element without passing through the lamp, owing to the resistance offered-by the lamp, and when the cut-out is open current flows through and lights the lamp.

. As will be seen, with this invention, single radiators may be used to heat a house or other building and it will not be necessary to have a central heating plant. The thermostatic device will act accurately to hold the temperature of a room at a certain degree.

It will further be readily understood that my device, when used as a portable article may be used for other heating purposes, such as heatin a kettle of water, substituting fire flues in a lioiler with a number of my devices,

I and other uses not necessary to be enumerated. 7

centrically and means for insulating the said perforated members from the elctrode and means connecting-one end of the said, electrode and theadjacent ends of said tubes in fixed relative positions; said latter means a cap and an insulated cap bushing, a central non-conductive electrode retaining bushing a secondary non-conductive bushing threade' in said cap and retaining said central bushing within it, conductor terminals fixed in said cap bushing, and contact means within said cap and the said central-bushing for conducting current through one terminal to said electrode and for passing current from said tubes to the other of said terminals.

In testimony whereof I afiix my si ature. ALBERT J. HUG ES. 

